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公开(公告)号:KR200032538Y1
公开(公告)日:1986-12-16
申请号:KR2019850014616
申请日:1985-11-06
Applicant: 한국과학기술연구원
Inventor: 이중홍 , 양동열 , 윤덕용
IPC: B21C1/00
公开(公告)号:KR100017228B1
公开(公告)日:1984-07-04
申请号:KR1019820005833
申请日:1982-12-28
Inventor: 양동열
IPC: F16J15/16
公开(公告)号:KR200021987Y1
公开(公告)日:1982-07-07
申请号:KR2019810008194
申请日:1981-12-04
Inventor: 양동열 , 최재찬 , 류장수 , 조남선 , 이상록
IPC: G01B5/00
公开(公告)号:KR100021720B1
公开(公告)日:1986-09-13
申请号:KR1019840003670
申请日:1984-06-28
IPC: G01L5/24 , G01L25/00